Brand ENO Model ECT-10 Quantity 1 Piece(s) Color Blue + black + grey Material Plastic Compatible Models Guitar Application Tune Chord Certification CE Other Feature Chord quantity: 240 kinds often use chords; Items of tuning: Chromatic / Guitar / Bass; Tuning range: A0 (27.5Hz) ~ C8 (4186.0Hz); A4 frequency range: A4=440Hz; Standard tone range: A2~A6; Flat:"b""bb"; Tuning method: Manual / Auto; Display backlight: Orange color backlight can be turned on for using in the dark; Power supply: 2 x AAA batteries (included); Screen size: 2.5inches; Pickup clamp line length: 90cm Packing List 1 x Tuner 2 x AAA batteries 1 x Pickup clamp 1 x Chinese / English user manual